package com.gofun.framework.redis;

import java.lang.reflect.Method;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;


@Configuration
@EnableCaching
@SuppressWarnings({"rawtypes", "unchecked"})
public class RedisConfig extends CachingConfigurerSupport {

  /**
   * @Description : 设置缓存对象的序列化方式,对于json序列化,对象要提供默认空构造器
   * @return : CacheManager
   * @Creation Date : 2016年4月19日 下午8:03:23
   * @Author : wangchao
   */
  @Bean
  public CacheManager getCacheManager(RedisTemplate redisTemplate) {
    Jackson2JsonRedisSerializer jackson2JsonRedisSerializer =
        new Jackson2JsonRedisSerializer(Object.class);
    ObjectMapper om = new ObjectMapper();
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
    om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
    jackson2JsonRedisSerializer.setObjectMapper(om);
    redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);

    RedisCacheManager cacheManager = new RedisCacheManager(redisTemplate);
    cacheManager.setDefaultExpiration(3000);
    return cacheManager;
  }

  /**
   * @Description : 自定义redis key生成策略
   * @return : KeyGenerator
   * @Creation Date : 2016年4月19日 下午8:04:53
   * @Author : wangchao
   */
  @Bean
  public KeyGenerator myKeyGenerator() {
    return new KeyGenerator() {
      @Override
      public Object generate(Object target, Method method, Object... params) {
        StringBuilder sb = new StringBuilder();
        sb.append(target.getClass().getName());
        sb.append(method.getName());
        for (Object obj : params) {
          sb.append(obj.toString());
        }
        return sb.toString();
      }
    };
  }

  /**
   * 
   * @Description : TODO RedisTemplate配置
   * @return : RedisTemplate<String,String>
   * @Creation Date : 2016年7月6日 上午10:17:05
   * @Author : bingo刑天
   */
  @Bean
  public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
    StringRedisTemplate template = new StringRedisTemplate(factory);
    Jackson2JsonRedisSerializer jackson2JsonRedisSerializer =
        new Jackson2JsonRedisSerializer(Object.class);
    ObjectMapper om = new ObjectMapper();
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
    om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
    jackson2JsonRedisSerializer.setObjectMapper(om);
    template.setValueSerializer(jackson2JsonRedisSerializer);
    template.afterPropertiesSet();
    return template;
  }
}
